Phil,
with these photo's, i plan to try to make sense of where the buildings are. i know Birmingham Library has a collection of maps. I have a map of 1839 of william street but it's not going to be too much help i fear, because it's 100 years or so out of date.
Most of the photo's have a steady incline on them which should give away which side of the street they are, when i get to visit William Street on my next visit to Birmingham, hopefully in the next few weeks.
I'll have a look though the register of electors aswell, to see what's there in the 1950's house by house.
I doubt my dad will be able to tell me anything further, but we never know.
I'll definately let you know how i get on.
Thanks again,.... still smiling. Paul